Does AutoInvoice master program always pick bank accounts with currency from a list

We have been using Oracle AutoInvoice Master program to create AR invoices from the OM orders for a long time, however, recently we noticed that for the autoACH customers that have multiple active bank accounts, the import program picks not the priority 1 bank account as we have seen in the past, but the bank account that may be priority 3 or 4, but it has USD as an account currency. The priority 1 bank account has no account currency defined.

And for autoACH customers we set them up with the ACH payment method as the primary payment method, so we expect the banking instrument details to be recorded on the created invoice and later the remittance program picks those invoices and creates the automatic receipts with the same payment instrument.